3D printer FFC wire harness

Abstract

The utility model discloses a 3D printer FFC wire harness, and relates to the FFC wire harness technology field, the wire harness comprises a wire harness body, the wire harness body comprises a connecting plug, a connecting head and a wire row connected between the connecting plug and the connecting head, the wire row is covered with a protection sleeve used for protecting the wire row, the protection sleeve comprises two sleeve bodies, and the two sleeve bodies are respectively provided with a plurality of through holes. The sleeve body is in a [shape and has certain elasticity, a protection cavity for accommodating a wire row is formed in the sleeve body, one sleeve body covers the left end of the wire row, and the other sleeve body covers the right end of the wire row; the connecting strip is connected between the two sleeve bodies and extends along the length direction of the wire row; and the fixing part is arranged on the side wall in the opening direction of the sleeve body so as to limit the sleeve body at a specified position on the line row. According to the utility model, the insulating layer of the wire bar is protected from being worn, thereby reducing the occurrence probability of faults such as short circuit.

Description

Technical Field

[0001] This utility model relates to the field of FFC wire harness technology, specifically to an FFC wire harness for 3D printers. Background Technology

[0002] In existing 3D printers, FFC (Flexible Flat Cable) harnesses are usually exposed and lack effective protective structures. Vibrations generated during printing may cause the FFC harness to rub against other internal components of the printer. Over time, this can wear down the insulation layer of the harness, leading to short circuits and other malfunctions. In addition, during routine maintenance and movement of the 3D printer, the exposed FFC harness is also prone to loosening of the connectors due to accidental contact or pulling, affecting its use.

[0003] In view of the above, this application is hereby submitted. Utility Model Content

[0004] The purpose of this invention is to provide an FFC wiring harness for 3D printers to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides a 3D printer FFC wiring harness, including a wiring harness body, the wiring harness body including a connector, a connector, and a wire strip connected between the connector and the connector, and a protective sleeve for protecting the wire strip is provided on the outside of the wire strip, the protective sleeve including,

[0006] Two sleeves, shaped like the letter C and with a certain degree of elasticity, are provided with a protective cavity inside the sleeve to accommodate the wire bar. One sleeve covers the left end of the wire bar, and the other sleeve covers the right end of the wire bar.

[0007] A connecting strip connects the two sleeves and extends along the length of the line;

[0008] A fixing part is provided on the side wall in the direction of the opening of the sleeve to limit the sleeve to a designated position on the line.

[0009] Furthermore, the fixing part includes a buckle connected to the upper part of the side wall in the opening direction of the sleeve and a buckle seat connected to the lower part of the side wall in the opening direction of the sleeve, and the movable end of the buckle is fastened to the buckle seat.

[0010] Furthermore, one end of the buckle that connects to the buckle seat has a sleeve that is adapted to the buckle seat, and the buckle is fastened to the buckle seat through the sleeve.

[0011] Furthermore, multiple buckles are provided along the length of the sleeve body, and the multiple buckles are distributed at equal intervals. The number of buckle seats is the same as the number of buckles.

[0012] Furthermore, the overall length of the protective sleeve is adapted to the length of the cable tray, and the protective sleeve is made of insulating rubber.

[0013] Furthermore, the inner wall of the protective cavity is integrally formed with anti-slip protrusions, and the outer surface of the anti-slip protrusions is in contact with the outer surface of the wire bar.

[0014] Furthermore, the sleeve has a straight portion and a bent portion, which are alternately distributed, so that the portion of the sleeve extending along the width direction of the wire harness body is wavy.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. In this utility model, the cable tray is located in the protective cavity inside the protective sleeve. The protective sleeve, with the properties of insulating rubber, can prevent the cable tray from directly contacting other internal components of the printer and causing friction, thus protecting the insulation layer of the cable tray from wear and reducing the probability of short circuits and other faults.

[0017] 2. In this utility model, the wave-shaped structure of the sleeve can better adapt to such bending. The bending part can bend with the bending of the wire harness, providing a certain deformation space and avoiding damage to the sleeve due to excessive stretching or compression. When the wire harness is stretched, the wave-shaped structure can absorb and disperse the tension through its own deformation, avoiding the tension from acting directly on the wire harness connectors, joints and other parts, preventing the connectors from loosening and ensuring the stability of the wire harness connection. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a front view structural diagram of the protective sleeve in this utility model;

[0021] Figure 4 This is a bottom view of the protective sleeve in this utility model.

[0022] In the diagram: 1. Connector; 2. Connector head; 3. Cable strip; 4. Protective sleeve; 41. Sleeve body; 42. Connecting strip; 43. Protective cavity; 44. Bending part; 45. Fastening strip; 46. Fastening seat. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 This utility model provides a technical solution: a 3D printer FFC wiring harness includes a wiring harness body, the wiring harness body includes a connector 1, a connector 2, and a wire strip 3 connecting the connector 1 and the connector 2. A protective sleeve 4 is provided on the outside of the wire strip 3 for protection. The protective sleeve 4 includes...

[0025] Two sleeves 41 are U-shaped and have a certain degree of elasticity. The inside of the sleeve 41 is provided with a protective cavity 43 to accommodate the wire bar 3. One sleeve 41 covers the left end of the wire bar 3 and the other sleeve 41 covers the right end of the wire bar 3.

[0026] A connecting strip 42 connects the two sleeves 41 and extends along the length of the line 3;

[0027] A fixing part is provided on the side wall of the sleeve 41 in the opening direction to limit the sleeve 41 to a designated position on the line 3.

[0028] See Figure 4 The fixing part includes a buckle 45 connected to the upper part of the side wall in the opening direction of the sleeve 41 and a buckle seat 46 connected to the lower part of the side wall in the opening direction of the sleeve 41, and the movable end of the buckle 45 is fastened to the buckle seat 46.

[0029] See Figure 4 The end of the buckle 45 that is connected to the buckle seat 46 has a sleeve that is adapted to the buckle seat 46, and the buckle 45 is fastened to the buckle seat 46 through the sleeve.

[0030] See Figure 4 Multiple buckle strips 45 are provided along the length of the sleeve body 41, and the multiple buckle strips 45 are distributed at equal intervals. The number of buckle seats 46 is the same as that of buckle strips 45.

[0031] See Figure 1 The overall length of the protective sleeve 4 is matched with the length of the cable tray 3, and the material of the protective sleeve 4 is insulating rubber.

[0032] The inner wall of the protective cavity 43 is integrally formed with anti-slip protrusions, and the outer surface of the anti-slip protrusions is in contact with the outer surface of the cable strip 3.

[0033] See Figure 3 and Figure 4The sleeve 41 has a straight portion and a bent portion 44, which are alternately distributed, so that the part of the sleeve 41 extending along the width direction of the wire harness body is wavy.

[0034] Working principle: The overall length of the protective sleeve 4 is adapted to the filament strip 3, and the material is insulating rubber. The filament strip 3 is located in the protective cavity 43 inside the protective sleeve 4. When the 3D printer is working, the protective sleeve 4, thanks to the properties of insulating rubber, can prevent the filament strip 3 from directly contacting other components inside the printer and causing friction, protecting the insulation layer of the filament strip 3 from wear, thereby reducing the probability of short circuits and other faults. Two C-shaped and elastic sleeves 41 are respectively placed over the left and right ends of the filament strip 3. A connecting strip 42 connects the two sleeves 41 and extends along the length of the filament strip 3. During operation, the line tray 3 will experience vibration and displacement due to the movement of the print head and the lifting and lowering of the platform. The elastic design of the sleeve 41 can buffer the impact of these vibrations and displacements on the line tray 3, reducing the impact force on the line tray 3. At the same time, the presence of the connecting strip 42 ensures the connection stability between the two sleeves 41 and reduces the coverage area of ​​the line tray 3, allowing the heat generated by the line tray 3 during operation to be dissipated in time, preventing the line tray 3 from degrading or being damaged due to overheating. The fixing part is set on the side wall in the opening direction of the sleeve 41 to limit the sleeve 41 to the line. Specifically, at a designated position on row 3, the fastening strip 45 of the fixing part is connected to the upper part of the side wall facing the opening of the sleeve 41, and the fastening seat 46 is connected to the lower part. The movable end of the fastening strip 45 is fastened to the fastening seat 46 through the sleeve opening. When installing the protective sleeve 4, the sleeve 41 is placed over the row 3, and then the fastening strip 45 is fastened to the fastening seat 46. In this way, the sleeve 41 can be firmly fixed to the row 3. During the daily use of the printer, even if the row 3 is subjected to external forces such as vibration or pulling, the sleeve 41 will not easily shift due to the fixing effect of the fixing part, thus ensuring that the protective sleeve 4 is always secure. Effective protection for the cable tray 3; the inner wall of the protective cavity 43 is integrally formed with anti-slip protrusions, the outer surface of the anti-slip protrusions is in contact with the outer surface of the cable tray 3. When the cable tray 3 is in the protective cavity 43, the anti-slip protrusions increase the friction between the cable tray 3 and the inner wall of the protective cavity 43. During the operation of the printer, the cable tray 3 will shake to a certain extent with the movement of the printer. The anti-slip protrusions can prevent the cable tray 3 from sliding in the protective cavity 43, ensuring that the position of the cable tray 3 in the protective sleeve 4 is relatively stable, avoiding friction between the cable tray 3 and the inner wall of the protective sleeve 4 due to the sliding of the cable tray 3, and further protecting the cable tray 3;The sleeve 41 has a straight portion and a bent portion 44, which are alternately distributed, making the portion of the sleeve 41 extending along the width direction of the wire harness body wavy. During 3D printing, the wire harness 3 may bend due to various movements. When the wire harness 3 bends, the wavy structure of the sleeve 41 can better adapt to this bending. The bent portion 44 can bend along with the wire harness 3, providing a certain deformation space and preventing the sleeve 41 from being damaged due to excessive stretching or compression. It also reduces the binding force on the wire harness 3, allowing it to bend more freely and reducing the risk of damage to the internal circuitry of the wire harness 3 due to bending. Furthermore, when the wire harness 3 is stretched, the wavy structure can absorb and disperse the tension through its own deformation, preventing the tension from directly acting on the connector 1, connector 2, and other parts of the wire harness 3, preventing loosening of the connectors and ensuring the stability of the wire harness connection.

[0035] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be construed as limiting the present invention itself. Various changes in form and detail may be made to the present invention without departing from the spirit and scope of the appended claims.

Claims

1. A 3D printer FFC wire harness comprising a wire harness body, the wire harness body comprising a plug connector (1), a connection connector (2) and a wire row (3) connected between the plug connector (1) and the connection connector (2), characterized in that: A protective sleeve (4) is arranged outside the wire harness (3) for protecting the wire harness (3), the protective sleeve (4) comprises, two sleeve bodies (41) in the shape of a Chinese character and having elasticity, the sleeve bodies (41) are internally provided with protective cavities (43) for accommodating the wire harness (3), one of the sleeve bodies (41) is arranged at the left end of the wire harness (3) and the other sleeve body (41) is arranged at the right end of the wire harness (3); a connecting strip (42) is connected between the two sleeve bodies (41) and extends along the length direction of the wire harness (3); a fixing part is arranged on the side wall of the sleeve body (41) in the opening direction of the sleeve body (41) to limit the sleeve body (41) to a specified position on the wire harness (3).

2. The 3D printer FFC flat cable of claim 1, wherein: The fixing part comprises a buckle strip (45) connected to the upper part of the side wall in the opening direction of the sleeve body (41) and a buckle seat (46) connected to the lower part of the side wall in the opening direction of the sleeve body (41), the movable end of the buckle strip (45) is buckled to the buckle seat (46).

3. A 3D printer FFC flat cable as claimed in claim 2, characterized in that: One end of the buckle strip (45) connected to the buckle seat (46) is provided with a sleeve opening matched with the buckle seat (46), the buckle strip (45) is buckled to the buckle seat (46) through the sleeve opening.

4. The 3D printer FFC flat cable of claim 3, wherein: A plurality of buckle strips (45) are arranged along the length direction of the sleeve body (41), the plurality of buckle strips (45) are equidistantly distributed, and the number of the buckle seats (46) is the same as that of the buckle strips (45).

5. The 3D printer FFC flat cable of claim 1, wherein: The length of the protective sleeve (4) is matched with the length of the wire harness (3), and the material of the protective sleeve (4) is insulating rubber.

6. The 3D printer FFC flat cable of claim 1, wherein: Anti-skid protrusions are integrally formed on the inner wall of the protective cavity (43), and the outer surface of the anti-skid protrusions is attached to the outer surface of the wire harness (3).

7. The 3D printer FFC flat cable of claim 1, wherein: The sleeve body (41) has a flat part and a bent part (44), the flat part and the bent part (44) are alternately distributed, so that the part of the sleeve body (41) extending along the width direction of the wire harness body is in a wave shape.

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